Furnace.



J. CORY.

FURNACE.

APPLICATION FILED APR. 25, 1914.

1,124, 1 10 Panama Jan. 5, 1915.

? 2 SHEETS-SHEET 1.

Z Snuamfoz iam/w 62W NORRIS PETERS 0).. FHGTO-Ln'na. WASHINGWN. D, C

J. (JURY.

FURNACE.

APPLIGATION FILED 3.25, 1914.

Patented Jan. 5, 1915.

2 SHEETSSHEET 2,

THE NORRIS PEI'ERS cuv PHOMTHIL. WASHING ION. D. c.

JEROME CORY, OF NEWCASTLE, INDIANA.

FURNACE.

Specification of Letters Patent.

Patented Jan. 5, 1915.

Application filed April 25, 1914. Serial No. 834,424.

To all whom it may concern.

Be it known that I, JEROME CORY, a c1t1- zen of the United States, residing at New castle, in the county of Henry and State of Indiana, have invented new and useful Improvements in Furnaces, of which the following is a specification.

The invention relates to furnaces, and more particularly to the class of heating furnaces for use in buildings.

The primary object of the invention is the provision of a furnace wherein the construction thereof permits of a direct upper draft or an indirect down draft from the combustion chamber to the draft flue or chimney of the furnace, thus enabling a slow steady fire with an increase in the heating quality thereof.

Another object of the invention is the provision of a furnace wherein the forma tion of clinkers is obviated, as well as rendering the furnace smokeless after the fire has been started therein.

A further object of the invention is the provision of a furnace of this character wherein the fire pots or boxes are arranged at opposite sides of the combustion flues or chambers so that water circulating in the furnace will be thoroughly heated before entering the supply system arranged within the building so that maximum heat may be attained with a minimum consumption of fuel.

A still further object of the invention is the provision of a furnace of this character which is extremely simple in construction, reliable and efficient in operation, and ineX pensive in manufacture and installation.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings :Figure 1 is a front elevation of a furnace constructed in accordance with the invention. Fig. 2 is a sectional view on the line 22 of Fig. 1. Fig. 3 is a vertical transverse sectional view through the medial portion of the furnace. Fig. 4 is a sectional view on the line 1% of Fig. 1. Fig. 5 is a fragmentary sectional view similar to Fig. 2, showing the slide damper and swinging damper in open position for the down draft in the furnace.

Similar reference characters indicate corranged packings 13 to form a tight joint therebetween. Passed through the head and through swells 14 at opposite sides of the casing A are tie rods 15 which firmly unite the sections of the casing A together. Ar-

ranged within the sections 11 and 12 of the casing A are upper and lower heating chambers or flues l6 and 17 respectively, which at their front ends communicate with a heating chamber 18 formed in the section 10 and common to both of said chambers,

while the rear ends of the chambers 16 and 17 communicate with a smoke pipe 19 through openings 20 and 21 for the respec tive chambers.

Arranged about the chambers 16, 17 and 18 and interiorly of the casing A about the head and sides thereof is a water circulating space or jacket 22. Arranged at opposite sides of the chambers 16, 17 and 18 and within the casing A are combustion spaces; 1

or chambers 23 which communicate at their lower ends with a fire pit 24 provided in the lowermost portion of the casing A, while arranged in the lower ends of the spaces or chambers 23 are fuel beds or grates 25, which i.

are of the rocking type, and each has its pivot shaft 'journaled in bearings 26, the shaft at its front end being extended through an opening in the front wall of the casing A for the attachment of a shakerhandle 27 therewith so that the fuel can be dumped into the fire pit when desired.

Hinged to the front wall of the casing A are ash doors 28, clinker doors 29, fire doors 30, and a clean out door 31, respec-.

tively, which are usual in the construction of furnaces, each ash door being provided with the usual draft door 32.

Adapted to be tapped to a nipple 33 on the section 11 and at the head of the casing A is the water main of the hot water supply system directed through the house, and of the ordinary well-known construction, while tapped in one side of the section 11 is the connection 34: of the return pipe system so that the water after becoming cool in the house and also the water of condensation can be let into the water circulating space 22 after passing through the supply system through the house, as is usual. The upper and lower chambers 16 and 17 communicate with the chamber 18 at the front of the furnace, whilethe sides of the upper chamber 16 in the section 12 are formed with openings 35, which establishes communication between the combustion chambers 23 and the upper chamber 16 in the furnace casin A at the rear thereof.

It will be apparent that the Water jocket 22 in the sections 11 and 12 is extended transversely of the furnace to form a horizontal partition which divides the chamber 16 at the upper part of the furnace from the chamber 17 at the lower part of the same, and this partition terminates at .its front end without the section 10, thus the chamber 18 communicates with both the chambers 16 and 17, while the chambers23 communicate with the chamber 16 through the openings 35 in the section 12 of the furnace.

'Swingingly supported upon a pivot 36 is a damper 37, which when lowered rests upon a seat 38 and is adapted to close the lower portion of the smoke pipe from communication with the upper portion thereof, it being understood of course that the smoke pipe is connected with the chimney or draft flue for the furnace, while slidably fitted in the chamber 16 in the section 12 is ,a damper 39 which is adapted to close the opening 52-0, thereby shutting off communication between the saidchamber 16 and the upper portion of the smoke pipe 19, the damper 39 being fitted with an operating rod or handle d0 which extends forwardly through the front wall of the furnace so that the said damper can be ,manually opened or closed, while connected to the pivots 36 of the damper 37 is an arm 41 to which is connected a rod 12, the same being pivotally connected to a bell crank lever 43 supported exteriorly of the casing A of the furnace and to which is pivotally connected a hand operating rod 4:4: supported by the casing A of the furnace and projected beyond the front wall thereof. It will be obvious that both dampers 37 and 39 can be opened and closed when desired.

Tapped in the front section 10 of the casing A at the head of the furnace is a water intake pipe 45, while near the lower end' of this section and tapped in one side thereof is a drain outlet pipe 46, so that water can be let into the circulating space 22 and drained therefrom, as will be apparent.

Now, to set the furnace for a direct upward draft therein the dampers 37 and '39 are manipulated to open the same sothat the draft will be created through the open ings20 and21 from the chambers 16 and 17 above the fire supported by the grates 25 within the furnace. Now, should a downward indirect draft be necessary, the damper 39 is shifted to a position for closing the opening 20, thereby shutting off communication betweenthe upper chamber 16 and the upper portion of the smoke pipe 19 so that the products of combustion will be deflected from the rear of the chamber 16 toward the front'of the furnace downwardly through the chamber 18 and rearwardly through the chamber 17 to the smoke pipe 19, and thence outwardly through the chimney leading therefrom.

From the foregoing it is thought that the construction and'manner of operation of the device will be clearly understood, and therefore a more extended explanation has been omitted.

What is claimed is 1. In a furnace,a casing having intermediate and outer chambers, a water jacket surrounding the said chambers and extendedabout thetop and sides of the casing and having a horizontal portion between thewalls of the intermediate chamber for dlvidlng it into upper and lower'portions, the said horizontal portion of the water acketterminating spaced from the front of the casing for establishing communication between the upper and lower portions of the said intermediate chamber at the front of the casing, the side walls dividing the interoff communication between the lower portion of "the intermediate chamber and the draft ,fiue.

,2. In a furnace, a casing having intermediate and outer chambers, a water jacket surrounding the said chambers and extended about the top and sidesof thevcasing and havinga horizontal portion between the walls of the intermediate chamber for diriding it into upperand-lower portions, the said horizontal portion of the water jacket terminating spaced from the front of the casing for establishing communication between the upper and lower portions of the saidintermediate chamber at the vfront of the casing, the side walls dividing the intermediate and outer chambers being'vprovidedlwith openings near the rear of the casing for establishing communication between .the outer chambers and the uppermost portion of the intermediate chamber, fire grates arranged within the lower portions of the outer chambers, a draft flue having communication with the upper and lower portions of the intermediate chamher, a slide damper movable to opposite sides of the openings in the side walls dividing the intermediate and outer chambers and also controlling the communication be tween the upper portion of the intermediate chamber and the draft flue, means for shutting off communication between the lower portion of the intermediate chamber and the draft flue, and means working through the front of the casing and connected with the slide damper for operating the same.

3. In a furnace, a casing having an intermediate and outer chambers, a water jacket surrounding the said chambers and extended about the top and sides of the casing and having a horizontal portion between the walls of the intermediate chamber for dividing it into upper and lower portions,

the said horizontal portion of the water jacket terminating spaced from the front of the casing for establishing communication between the upper and lower portions of the said intermediate chamber at the front of the casing, the side walls dividing the intermediate and outer chambers being provided with openings near the rear of the casing for establishing communication between the outer chambers and the uppermost portion of the intermediate chamber, fire grates arranged within the lower portions of the outer chambers, a draft flue having communication with the upper and lower portions of the intermediate chamber, a slide damper movable to opposite sides of the openings in the side walls dividing the intermediate and outer chambers and also controlling the communication between the upper portion of the intermediate chamber and the draft flue, means for shutting off communication between the lower portion of the intermediate chamber and the draft flue, means working through the front of the casing and connected with the slide damper for operating the same, and means operable from the front of the casing for controlling the means for closing communication between the lower portion of the intermediate chamber and the flue.

In testimony whereof I aflix my signature in presence of two witnesses.

JEROME CORY.

Witnesses EDGAR T. WHITE, MAME HUNTER.

(topic: of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

